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          The work is too hard for him. He__________ finish it on time.
          A．can'tB．mustn'tC．shouldn'tD．needn't
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          A
          情態(tài)動(dòng)詞的考察 句意為“這工作對(duì)他來說太難。他不可能按時(shí)完成”。 can't 用在否定句中表示“不可能”； mustn't“絕對(duì)不能，禁止”； shouldn't “不應(yīng)該”needn't“不必”
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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